function tooltip(id,maxWidth){
	$.extend($.fn.datagrid.methods,{  
        /**
         * 寮€鎵撴彁绀哄姛鑳�  
         * @param {} jq
         * @param {} params 鎻愮ず娑堟伅妗嗙殑鏍峰紡
         * @return {}
         */
        doCellTip:function(jq, params){
            function showTip(data, td, e){  
                if ($(td).text() == "")   
                    return;  
                data.tooltip.text($(td).text()).css({  
                    top: (e.pageY + 10) + 'px',  
                    left: (e.pageX + 20) + 'px',  
                    'z-index': $.fn.window.defaults.zIndex,  
                    display: 'block'  
                });  
            };  
            return jq.each(function(){
                var grid = $(this);  
                var options = $(this).data('datagrid');  
                if (!options.tooltip) {  
                    var panel = grid.datagrid('getPanel').panel('panel');  
                    var defaultCls = {  
                        'border': '1px solid #333',  
                        'padding': '2px',  
                        'color': '#333',  
                        'background': '#f7f5d1',  
                        'position': 'absolute',  
                        'max-width':maxWidth,  
                        'border-radius' : '4px',  
                        '-moz-border-radius' : '4px',  
                        '-webkit-border-radius' : '4px',  
                        'display': 'none'  
                    }  
                    var tooltip = $("<div id='celltip'></div>").appendTo('body');  
                    tooltip.css($.extend({}, defaultCls, params.cls));  
                    options.tooltip = tooltip;  
                    panel.find('.datagrid-body').each(function(){  
                        var delegateEle = $(this).find('> div.datagrid-body-inner').length ? $(this).find('> div.datagrid-body-inner')[0] : this;  
                        $(delegateEle).undelegate('td', 'mouseover').undelegate('td', 'mouseout').undelegate('td', 'mousemove').delegate('td', {  
                            'mouseover': function(e){  
                                if (params.delay) {  
                                    if (options.tipDelayTime)   
                                        clearTimeout(options.tipDelayTime);  
                                    var that = this;  
                                    options.tipDelayTime = setTimeout(function(){  
                                        showTip(options, that, e);  
                                    }, params.delay);  
                                }  
                                else {  
                                    showTip(options, this, e);  
                                }  
                                  
                            },  
                            'mouseout': function(e){  
                                if (options.tipDelayTime)   
                                    clearTimeout(options.tipDelayTime);  
                                options.tooltip.css({  
                                    'display': 'none'  
                                });  
                            },  
                            'mousemove': function(e){  
                                var that = this;  
                                if (options.tipDelayTime)   
                                    clearTimeout(options.tipDelayTime);  
                                //showTip(options, this, e);  
                                options.tipDelayTime = setTimeout(function(){  
                                        showTip(options, that, e);  
                                    }, params.delay);  
                            }  
                        });  
                    });  
                      
                }  
                  
            });  
        },  
        /**  
         * 鍏抽棴娑堟伅鎻愮ず鍔熻兘  
         *  
         * @param {}  
         *            jq  
         * @return {}  
         */  
        cancelCellTip: function(jq){  
            return jq.each(function(){  
                var data = $(this).data('datagrid');  
                if (data.tooltip) {  
                    data.tooltip.remove();  
                    data.tooltip = null;  
                    var panel = $(this).datagrid('getPanel').panel('panel');  
                    panel.find('.datagrid-body').undelegate('td', 'mouseover').undelegate('td', 'mouseout').undelegate('td', 'mousemove')  
                }  
                if (data.tipDelayTime) {  
                    clearTimeout(data.tipDelayTime);  
                    data.tipDelayTime = null;  
                }  
            });  
        }
    });
	$('#'+id).datagrid('doCellTip',{'max-width':'+maxWidth+'});
}